KR20210050290A - Event relay device and control method thereof - Google Patents

Abstract

The present invention relays a navigation app-based event function to vehicles that do not use the same navigation app and even vehicles that do not have a communication channel with a V2X server, thereby capable of dramatically expanding the number of nearby vehicles that can receive a navigation app-based event function relay. The present invention includes a relay target determining unit.

Description

Event relay device and operation method of event relay device {EVENT RELAY DEVICE AND CONTROL METHOD THEREOF}

The present invention relates to a navigation technology for guiding a moving route, and more particularly, to a technology for expanding the number of surrounding vehicles that can receive an event function based on a navigation app.

The navigation technology that guides the movement route guides the route from the origin to the destination and locates the moving object (e.g., vehicle) on the route by using the measurement position of the moving object (e.g., vehicle) according to the GPS signal-based position measurement. By displaying, a service is provided to guide the driver to the moving route to the destination.

In such a navigation technology, a navigation app that is installed on a terminal in a vehicle to provide a travel route service, a navigation server that maintains/repairs/manages link-based map information required for a travel route service, and supports communication between the navigation app and the navigation server. The communication function of the terminal is set as the basic configuration.

On the other hand, V2X (Vehicle to Everything) technology, which is emerging recently, is a technology that connects all vehicles and surroundings related to vehicle driving based on communication, and includes all vehicles (V2V), base stations (V2N), pedestrians (V2P), and bicycles. It could be a (V2C), a traffic light (V2I), etc.

In this V2X technology, communication technology is largely divided into WAVE technology and C-V2X technology, of which C-V2X is composed of a Uu interface capable of V2N based on 3GPP rel.14 and a Pc5 interface capable of direct communication between vehicles.

Accordingly, the navigation app provides an alarm service that alarms sudden braking events while expanding its service function with V2X technology.

Briefly, the alarm service determines that there is a risk of an accident if the vehicle using the preceding navigation app suddenly brakes, and when the navigation app reports this to the V2X server, the V2X server will back up within 1.5 km of the vehicle's maximum rear. It is a service that gives attention to the driver by promptly displaying a warning message to the vehicle using the following navigation app, so that the following driver can reduce the risk of a collision (accident) by reducing the speed according to the navigation warning even if the situation in front is not visible in the field of view. .

For this current alarm service, a terminal (e.g., a smartphone) with a navigation app installed on the vehicle (hereinafter referred to as an event vehicle) in which sudden braking has occurred is required, and a terminal with the same navigation app (e.g. : Smartphone) is required.

That is, the current alarm service is a service that is subordinate to an event function based on a specific navigation app, and there is a limitation that it cannot be provided to vehicles that do not use the same navigation app.

Accordingly, in the present invention, by relaying the event function based on the navigation app to vehicles that do not use the same navigation app, even vehicles without a communication channel with the V2X server, out of the dependency of the event function based on the navigation app. We would like to propose a way to increase the number of nearby vehicles that can receive app-based event functions.

The present invention was created in view of the above circumstances, and an object to be reached in the present invention is to realize a method of increasing the number of surrounding vehicles capable of relaying an event function based on a navigation app.

The event relay device according to the first aspect of the present invention for achieving the above object, upon receiving an event message for a vehicle, determines a relay target to relay the event according to the event message based on the subject that transmitted the event message. A relay target determination unit; And transmitting an event message for the event through a communication interface with the determined relay target, and relaying the event message so that the surrounding vehicle interlocking with the relay target or the surrounding vehicle that is the relay target can receive the message about the event. Includes wealth.

Specifically, the relay target determination unit provides a V2X (Vehicle to Everything) service when the subject transmitting the event message is the event vehicle that generated the event or a relay vehicle that relays the event message transmitted by the event vehicle. The server and nearby vehicles may be determined as the relay target.

Specifically, the relay target determination unit, when the determined relay target includes a server providing a V2X service, the event message for the event among nearby vehicles based on a first communication interface that supports direct communication between vehicles. If it is determined that there is no vehicle transmitted to the server, the server may be maintained as the relay target.

Specifically, when the subject transmitting the event message is a server providing a V2X service, the relay target determination unit may determine a nearby vehicle as the relay target.

Specifically, when the determined relay target includes nearby vehicles, the event relay transmits an event message through a first communication interface supporting direct communication between vehicles targeting the surrounding vehicles, and transmits an event message to the determined relay target. When a server providing a Vehicle to Everything (V2X) service is included, an event message may be transmitted to the server through a second communication interface supporting base station-based indirect communication.

Specifically, the event relay unit, when transmitting an event message through the first communication interface, provides a distance between the event vehicle that generated the event and a specific vehicle of the event relay device together, and the surrounding vehicle transmits the event message to the event message. When a corresponding event alarm occurs, the calculated distance between the event vehicle and the surrounding vehicle can be applied using the distance.

Specifically, an alarm processing unit for differently processing an event alarm method according to the event message based on the subject that transmitted the event message may be further included.

Specifically, when the subject transmitting the event message is a server providing a V2X service, the alarm processing unit may generate an event alarm according to the event message.

Specifically, when the subject transmitting the event message is the event vehicle that generated the event or a relay vehicle that relays the event message transmitted by the event vehicle, based on the information of the event message, the Determine whether the event according to the event message satisfies the condition 1 occurring at a position ahead of the specific vehicle of the event relay device and the condition 2 occurring in the vehicle in the same driving direction as the specific vehicle, and if satisfied, according to the event message. Event alarm can be triggered.

In order to achieve the above object, a method of operating an event relay device according to a second aspect of the present invention, when receiving an event message for a vehicle, relays an event according to the event message based on the subject that transmitted the event message. A relay target determination step of determining a target; And transmitting an event message for the event through a communication interface with the determined relay target, and relaying the event message so that the surrounding vehicle interlocking with the relay target or the surrounding vehicle that is the relay target can receive the message about the event. Includes steps.

The computer program according to the third aspect of the present invention for achieving the above object is combined with hardware to relay an event according to the event message based on the subject that transmitted the event message when an event message for a vehicle is received. A relay target determination step of determining a relay target; And transmitting an event message for the event through a communication interface with the determined relay target, and relaying the event message so that the surrounding vehicle interlocking with the relay target or the surrounding vehicle that is the relay target can receive the message about the event. It is stored on the medium to execute the steps.

Specifically, in the step of determining the relay target, when the subject transmitting the event message is the event vehicle that generated the event or a relay vehicle that relays the event message transmitted by the event vehicle, a V2X (Vehicle to Everything) service is provided. When a providing server and a nearby vehicle are determined as the relay target, and the entity that transmits the event message is a server that provides the V2X service, the surrounding vehicle may be determined as the relay target.

Specifically, in the step of determining the relay target, when the determined relay target includes a server providing a V2X service, an event message for the event among surrounding vehicles is transmitted based on a first communication interface that supports direct communication between vehicles. If it is determined that there is no vehicle transmitted to the server, the server may be maintained as the relay target.

Specifically, in the event relaying step, when a surrounding vehicle is included in the determined relay target, an event message is transmitted to the surrounding vehicle through a first communication interface that supports direct communication between vehicles, and the determined relay target When a server providing a Vehicle to Everything (V2X) service is included in the server, an event message may be transmitted to the server through a second communication interface supporting base station-based indirect communication.

Specifically, in the event relay step, when an event message is transmitted through the first communication interface, a distance between the event vehicle that generated the event and a specific vehicle of the event relay device is provided together, and the event message from the surrounding vehicle is provided. When an event alarm according to is generated, a calculated distance between the event vehicle and the surrounding vehicle may be applied using the distance.

Specifically, an alarm processing unit for differently processing an event alarm method according to the event message based on the subject that transmitted the event message may be further included.

Specifically, in the alarm processing step, when the subject transmitting the event message is the event vehicle that generated the event or a relay vehicle that relays the event message transmitted by the event vehicle, based on the information of the event message, Determine whether the event according to the event message satisfies the condition 1 occurring at a position ahead of the specific vehicle of the event relay device and the condition 2 occurring in the vehicle in the same driving direction as the specific vehicle, and if satisfied, the event message Event alarms can be generated.

Accordingly, according to the event relay device and the operation method of the event relay device of the present invention, a vehicle that does not use the same navigation app for the event function based on a navigation app, escaping the dependency of the event function based on a navigation app, furthermore, a V2X server By relaying even vehicles that do not have a communication channel with the vehicle, the number of nearby vehicles that can receive the event function based on the navigation app can be remarkably expanded.

For this reason, in the present invention, by enabling event function relay not dependent on a specific app, an effect that can be stably applied to advanced V2X technology can be expected.

1 is an exemplary diagram briefly showing an alarm service according to an event function based on an existing navigation app.
2 is a block diagram showing the configuration of an event relay device according to an embodiment of the present invention.
3 is an exemplary diagram showing an example in which an alarm service provision range is extended through event relay according to the present invention.
4 is an exemplary view showing the concept of classifying a preceding/following vehicle in the present invention.
5 and 6 are flowcharts illustrating a method of operating an event relay device according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The present invention relates to a navigation technology for guiding a moving route.

The navigation technology that guides the movement route guides the route from the origin to the destination and locates the moving object (e.g., vehicle) on the route by using the measurement position of the moving object (e.g., vehicle) according to the GPS signal-based position measurement. By displaying, a service is provided to guide the driver to the moving route to the destination.

In such a navigation technology, a navigation app that is installed on a terminal in a vehicle to provide a travel route service, a navigation server that maintains/repairs/manages link-based map information required for a travel route service, and supports communication between the navigation app and the navigation server. The communication function of the terminal is set as the basic configuration.

On the other hand, V2X (Vehicle to Everything) technology, which is emerging recently, is a technology that connects all vehicles and surroundings related to vehicle driving based on communication, and includes all vehicles (V2V), base stations (V2N), pedestrians (V2P), and bicycles. It could be a (V2C), a traffic light (V2I), etc.

In this V2X technology, communication technology is largely divided into WAVE technology and C-V2X technology, of which C-V2X is composed of a Uu interface capable of V2N based on 3GPP rel.14 and a Pc5 interface capable of direct communication between vehicles.

Accordingly, the navigation app provides an alarm service that alarms sudden braking events while expanding its service function with V2X technology.

An alarm service according to an event function based on an existing navigation app will be briefly described with reference to FIG. 1 as follows.

If the vehicle using the navigation app 10 suddenly brakes, it is determined that there is a risk of an accident, and a navigation app (hereinafter, App) installed in the terminal in the vehicle 10 reports this to the V2X server 200.

Accordingly, when the V2X server 200 transmits a message about the sudden braking event to the vehicle using the navigation app (20, 30,...) that follows within the maximum rear 1.5 km of the vehicle 10, the vehicle 20 that has received it , 30,...) Each navigation app installed in my terminal outputs a warning message according to the message to give attention to the driver.

As such, the alarm service alerts the driver of the vehicle following the vehicle in which the sudden braking event has occurred (hereinafter, the event vehicle), and the following driver reduces the speed according to the navigation warning even if the situation in front is not visible in the field of view, causing a collision (accident ) It is a service that can reduce the risk.

For such an existing alarm service, a terminal (e.g., a smartphone) with a navigation app installed on the vehicle where sudden braking has occurred, that is, the event vehicle 10, is required, and the following vehicles 20, 30,... Also, you need a terminal (e.g., a smartphone) with the same navigation app installed.

That is, the existing alarm service is a service that is subordinate to an event function based on a specific navigation app, and there is a limitation that it cannot be provided to vehicles that do not use the same navigation app.

Accordingly, in the present invention, by relaying the event function based on the navigation app to vehicles that do not use the same navigation app, even vehicles without a communication channel with the V2X server, out of the dependency of the event function based on the navigation app. We would like to propose a technology that can increase the number of nearby vehicles that can relay app-based event functions.

Specifically, in the present invention, it is intended to propose an event relay device that realizes a technology capable of increasing the number of surrounding vehicles capable of relaying an event function based on a navigation app.

Prior to the description, the event relay device proposed/realized in the present invention may be implemented as an app (navigation) that supports a communication function (channel) with a V2X server, and supports a communication function (channel) with a V2X server. It can also be implemented as a separate app that works with the app (navigation).

For convenience of explanation, in the following description, a vehicle in which an app with an event relay device of the present invention is installed in a terminal in a vehicle (hereinafter, an App-installed vehicle) and an app in which the event relay device of the present invention is implemented in a terminal in the vehicle Vehicles that are not installed (hereinafter, other App-installed vehicles) will be described separately.

Hereinafter, an event relay device 100 according to an embodiment of the present invention will be described in detail with reference to FIG. 2.

As shown in FIG. 2, the event relay device 100 according to an embodiment of the present invention includes a relay target determination unit 110 and an event relay unit 120.

Furthermore, the event relay device 100 of the present invention may further include an alarm processing unit 130.

In addition, the event relay device 100 of the present invention, in addition to the above-described configuration, is responsible for a base station-based indirect communication function (eg, Uu interface) for communication with a V2X server or a direct communication function between vehicles (eg, Pc5 interface). It may further include a configuration of the communication unit 140 in charge of.

Here, the communication unit 140 includes, for example, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a codec chipset, and a memory, but is not limited thereto. Any known circuit to perform may be included.

All or at least a part of the configuration of the event relay device 100 may be implemented in the form of a hardware module or a software module, or may be implemented in a form in which a hardware module and a software module are combined.

Here, the software module may be understood as, for example, an instruction executed by a processor that controls an operation in the event relay device 100, and such a command may have a form mounted in a memory in the event relay device 100. will be.

Eventually, the event relay device 100 according to an embodiment of the present invention expands the number of surrounding vehicles that can receive a new technology proposed by the present invention, that is, a navigation app-based event function, through the above-described configuration. It is possible to realize the technology, and hereinafter will be described in more detail for each configuration in the event relay device 100 for realizing this.

When receiving an event message for a vehicle, the relay target determination unit 110 is responsible for determining a relay target to relay an event according to the current event message based on the subject that transmitted the event message.

In this case, the event message may be a message generated to notify the sudden braking of a vehicle (hereinafter, referred to as an event vehicle) in which the sudden braking has occurred.

That is, when the event message related to the sudden braking event for the event vehicle is received, the relay target determination unit 110 may determine a relay target to relay the event according to the current event message based on the subject that transmitted the event message.

Specifically, the relay target determination unit 110 relays the event vehicle that caused the event, that is, the sudden braking event, or the event message transmitted by the event vehicle, by the entity that transmitted the event message related to the sudden braking event received this time. In the case of a relay vehicle, a server providing a Vehicle to Everything (V2X) service (hereinafter, referred to as a V2X server) and a nearby vehicle may be determined as a relay target.

Referring to FIG. 3, a vehicle in which an app in which the event relay device 100 of the present invention is implemented is installed in a terminal in the vehicle, that is, an App installation vehicle 10 and 20, and an event relay of the present invention to an in-vehicle terminal. It shows a situation in which a vehicle in which the app in which the device 100 is implemented is not installed, that is, other App-installed vehicles 1, 2, and 3 are driving in the same driving direction.

And, in Figure 3, it is assumed that a case in which an event message related to sudden braking is generated by another App installed in the vehicle (1) by sudden braking in another App-installed vehicle (1), and the other App has a communication function with the V2X server. It is assumed that there is no (channel) and only the first communication interface (eg, PC5 interface) that supports direct communication between vehicles is available.

In this case, the App-installed vehicle 10 receives an event message from another App-installed vehicle 1 corresponding to the event vehicle through direct communication between vehicles based on the PC5 interface, and at this time, the event relay device in the vehicle 10 The relay target determination unit 110 of (100) will recognize the subject that transmitted this event message received through the Pc5 interface as the event vehicle.

If the other App-installed vehicle preceding another App-installed vehicle (1) has an event vehicle, and the other App-installed vehicle (1) is a relay vehicle that relays event messages generated/sent by another App-installed vehicle preceding the other App-installed vehicle (1). , The App-installed vehicle 10 receives an event message from another App-installed vehicle 1 corresponding to the relay vehicle through direct communication between vehicles based on the Pc5 interface, and at this time, the event relay device 100 in the vehicle 10 The relay target determination unit 110 of) will recognize the subject that transmitted the event message received through the Pc5 interface as the relay vehicle.

In this way, the relay target determination unit 110, when the subject transmitting the event message related to the sudden braking event received this time is an event vehicle or a relay vehicle that relays the event message transmitted by the event vehicle, in other words, the Pc5 interface. When receiving the event message through, the V2X server 200 and surrounding vehicles may be determined as a relay target.

At this time, the event message may include various information, and basically, the location information (latitude/longitude) of the vehicle itself (Ego) transmitting the event message, heading information related to the driving direction, and It includes identification information indicating whether communication with the V2X server is possible (for example, whether an app is installed in which the event relay device 100 of the present invention is implemented, etc.), and furthermore, the distance between the event vehicle and the vehicle itself (Ego), and It may be configured to include whether or not the event message is transmitted and reported to the V2X server (hereinafter, information on whether to report).

In addition, when the relay target determination unit 110 includes a server that provides a V2X service to the relay target determined as described above, that is, a V2X server 200, a first communication interface that supports direct communication between vehicles, for example, is based on a PC5 interface. As a result, only when it is determined that there is no vehicle that has transmitted an event message for this event to the V2X server 200 among surrounding vehicles, the V2X server 200 can be maintained as a relay target.

For example, referring to FIG. 3, in addition to the App-installed vehicle 10, the event relay device of the present invention among surrounding vehicles received through direct communication between vehicles based on the Pc5 interface for an event message related to this sudden braking ( 100) If there is a vehicle with an app installed, that is, an App installation vehicle (for example, 20), all of the App installation vehicles 10 and 20 transmit an event message for the same level provision to the V2X server 200, respectively. Duplicate reporting situations may occur.

To avoid this, the relay target determination unit 110, when receiving an event message through the Pc5 interface, determines the V2X server 200 and surrounding vehicles as the relay target, but the event message transmitted and received through the Pc5 interface (reporting information ) Is checked to determine whether there is a vehicle that has transmitted the event message for this event to the V2X server 200.

And, the relay target determination unit 110, only when it is determined that there is no vehicle that has transmitted the event message for this event among the surrounding vehicles to the V2X server 200 as a result of the confirmation, by maintaining the V2X server 200 as a relay target. In the event relay 120 to be described later, the event message for this event can be transmitted to the V2X server 200.

On the other hand, the relay target determination unit 110, when the subject transmitting the event message related to the sudden braking event received this time is a server that provides a V2X service, that is, the V2X server 200, may determine the surrounding vehicle as a relay target.

Referring to FIG. 3, an App installation vehicle 10 receiving an event message through direct communication between vehicles based on a PC5 interface from another App installation vehicle 1, which is an event vehicle, is a V2X server 200 and a surrounding vehicle. It is determined as a relay target, and there is no vehicle that has transmitted an event message for this event to the V2X server 200 among surrounding vehicles, so it may be assumed that the event message is also transmitted and reported to the V2X server 200.

In this case, the V2X server 200, based on the event message reported as in the past, if the subject reporting the event message is the event vehicle itself, based on the location information (latitude/longitude) of the vehicle identified in the message, Or, if the subject reporting the event message is a relay vehicle, based on the distance between the event vehicle and the vehicle itself (Ego) identified in the message, and the vehicle's location information (latitude/longitude), the maximum rear of the event vehicle is within 1.5 km. The following App installation vehicle (20,...) will be specified, and an event message for this sudden braking event will be transmitted to the specific following App installation vehicle (20,...).

Accordingly, the App installation vehicle 20 receives an event message from the V2X server 200 through a second communication interface, such as a Uu interface, which supports base station-based indirect communication, and at this time, the event relay device 100 in the vehicle 20 The relay target determination unit 110 of) will recognize the subject that transmitted this event message received through the Uu interface as the V2X server 200.

In this way, the relay target determination unit 110, when the subject transmitting the event message related to the sudden braking event received this time is the V2X server 200, that is, when receiving the event message through the Uu interface, the surrounding vehicle It can be decided as a relay target.

The event relay unit 120 transmits an event message for the current event through a communication interface with the relay target determined by the relay target determination unit 110, and is connected to the relay target, that is, the V2X server 200. In other words, it is in charge of relaying so that the message about this event can be received from the vehicle installed by the App) or the vehicle surrounding the relay (in other words, the vehicle installed by another App).

Specifically, when the determined relay target includes a nearby vehicle, that is, another App-installed vehicle, the event relay 120 broadcasts an event message to the surrounding vehicle through a first communication interface, that is, a PC5 interface. I can send it.

For example, referring to the App installation vehicle 20 in FIG. 3, the event relay 120 of the event relay device 100 in the vehicle 20 directly transmits the received event message between vehicles based on the PC5 interface. By broadcasting through communication, an event message can be transmitted to a nearby vehicle, that is, another App-installed vehicle.

In this case, other App installation vehicles 2 and 3 in the vicinity of the App installation vehicle 20 may receive an event message through direct communication between vehicles based on the PC5 interface.

In particular, the event relay 120, when transmitting the event message through the first communication interface, that is, the PC5 interface, the event vehicle that generated this event and the specific vehicle of the event relay device 100, that is, the distance between the vehicle 20 together. When an event alarm occurs according to this event message in surrounding vehicles that receive the event message transmitted from the vehicle 20, that is, other App-installed vehicles (2, 3), an event is performed using the distance between the event vehicle and the vehicle 20 The calculated distance between the vehicle and the surrounding vehicle itself can be applied.

A specific example will be described with reference to FIG. 3, in the case of other App-installed vehicles 2 and 3 that have received the event message transmitted by the App installation vehicle 20 through the PC5 interface, the event vehicle (eg: 1) It is possible to check the distance between the vehicle 20 and the distance (eg, an event occurs 1.5km ahead) and the location information (latitude/longitude) of the vehicle 20.

Accordingly, each of the other App-installed vehicles (2, 3), through a calculation (e.g., Haversine formula) using the latitude/longitude value of the vehicle itself (Ego) and the latitude/longitude value of the confirmed vehicle 20, the event vehicle ( Example: 1) and the distance (d) from the vehicle itself (Ego) can be calculated.

For example, if the other App-installed vehicle (2) is 600m ahead of the vehicle (20), the other App-installed vehicle (2) increases the distance (d) between the event vehicle (eg, 1) and the vehicle itself (Ego) by 900m. If the other App-installed vehicle (3) is 200m later than the vehicle (20), the other App-installed vehicle (3) sets the distance (d) between the event vehicle (eg 1) and the vehicle itself (Ego) by 1.8 It will be calculated in km.

In addition, each of the other App-installed vehicles (2, 3) is a condition 1 that occurs in a position ahead of the vehicle itself (Ego) in accordance with this event message and occurs in the vehicle in the same driving direction as the vehicle itself (Ego). If condition 2 is satisfied, and if both conditions 1 and 2 are satisfied, an event alarm that reflects (applies) the distance (d) between the previously calculated event vehicle (e.g. 1) and the vehicle itself (Ego) can be generated. have.

Here, the method of determining condition 1 and condition 2 will be described in detail later.

Meanwhile, when the determined relay target includes the V2X server 200, the event relay 120 may transmit an event message to the V2X server 200 through a second communication interface, that is, a Uu interface. This may be the same as or correspond to the existing event message reporting method.

For example, referring to the App installation vehicle 10 in FIG. 3, the event relay 120 of the event relay device 100 in the vehicle 10 transmits the received event message to a base station-based indirectly based on a Uu interface. It can be transmitted to the V2X server 200 through communication.

In this case, as described above, on the basis of the reported event message, the App-installed vehicle (20,...) that follows within the maximum rear 1.5 km of the event vehicle is specified, and the App-installed vehicle (20,.. We will send an event message for this sudden braking event to .).

In the above, the event relay device 100 of the present invention has been described with a focus on the viewpoint of relaying an event message.

Hereinafter, the event relay device 100 of the present invention will be described with a focus on the generation of an event alarm.

To this end, the alarm processing unit 130 may differently process the event alarm method according to the current event message based on the subject that transmitted the event message, that is, the event message related to the sudden braking event received this time.

Specifically, the alarm processing unit 130, when the subject that transmitted the event message, that is, the event message related to the sudden braking event received this time, is the V2X server 20, that is, when receiving the event message through the Uu interface, The V2X server 20 specifies and receives as a target vehicle (for example, within 1.5 km of the maximum rear), and since the information in the event message is processed by the server, an event alarm according to the event message can be generated as it is.

For example, referring to FIG. 3, in the App-installed vehicle 20 that receives an event message from the V2X server 20, an event alarm according to the received event message is generated as it is and a warning phrase is output to pay attention to the driver. Will be given. This may be the same as or correspond to the existing event alarm processing method.

On the other hand, the alarm processing unit 130, when the subject that transmitted the event message, that is, the event message related to the sudden braking event received this time, is the event vehicle that generated the event or a relay vehicle that relays the event message transmitted by the event vehicle, In other words, when an event message is received through the Pc5 interface, it is determined whether conditions 1 and 2 are satisfied based on the information in this event message.

Specifically, as mentioned above, in the event message, the location information (latitude/longitude) of the vehicle itself (Ego) sending the event message, heading information related to the driving direction, and communication with the V2X server It includes identification information indicating whether it is possible (for example, whether or not an app is installed in which the event relay device 100 of the present invention is implemented), and furthermore, the distance between the event vehicle and the vehicle itself (Ego), and the corresponding event to the V2X server It may be configured to include whether or not a message is transmitted and reported (hereinafter, information on whether to report).

For example, referring to FIG. 3, in the App-installed vehicle 10 that receives an event message from another App-installed vehicle 1, it is received through the Pc5 interface, which is a direct communication between vehicles. It is necessary to determine whether the event, that is, the sudden braking event, has occurred in a position ahead of the vehicle 10 itself (the preceding vehicle) (condition 1) and whether it has occurred in a vehicle in the same driving direction (condition 2).

Accordingly, if the event message, that is, the event message related to the sudden braking event received this time, is received through the Pc5 interface, the alarm processing unit 130 determines whether the above conditions 1 and 2 are satisfied based on the information in the current event message. By doing so, it is possible to determine whether or not it is a meaningful event message that may generate an event alarm.

Hereinafter, a detailed process of determining whether conditions 1 and 2 are satisfied may be described with reference to the App installation vehicle 10 in FIG. 3.

When receiving the event message through the Pc5 interface, the alarm processing unit 130 stores the latitude/longitude value of the vehicle that transmitted the message, that is, the vehicle 1, and the heading information of the vehicle 1 from the received message. Able to know.

Accordingly, the alarm processing unit 130 uses the latitude/longitude value of the vehicle (10, hereinafter Ego vehicle) on which it is installed calculated through GPS and the latitude/longitude value of the vehicle 1, and provides an event according to the event message. That is, it is determined whether the sudden braking event has occurred in a position (preceding vehicle) ahead of the Ego vehicle 10 itself (condition 1).

Specifically, as shown in FIG. 4, the latitude/longitude values of the Ego vehicle 10 are mapped to the coordinate system (0, 0) to change, and in this case, original_latitude=δx and original_longitude=δy. In other words, it is the amount of change in the latitude and longitude coordinates of the Ego vehicle.

Then, δx and δy are added to each of the latitude/longitude values of the vehicle 1 indicated in green, and mapped to a corresponding position in the coordinate system as shown in FIG. 4.

If there is a message received through the Pc5 interface from a vehicle (blue) following the Ego vehicle 10, δx and δy are added to each of the latitude/longitude values of the vehicle (blue), as shown in FIG. Map it to that location.

The alarm processing unit 130 maps and changes the latitude/longitude values of the Ego vehicle 10 to the coordinate system (0, 0), and then changes the value of the Ego vehicle 10 based on the driving direction of the Ego vehicle 10, and the red dotted line (boundary line) in FIG. The equation (f) of a straight line expressed as) can be obtained by Equation 1 below.

[Equation 1]

y=(-1/tanθ)*x

When the latitude/longitude value of the vehicle 1 indicated in green is (x',y'), when f(x'+δx, y'+δy) is calculated, a value greater than 0 is displayed. That is, f(x'+δx, y'+δy)>0. Qualitatively, it can be determined that the vehicle 1 is in the upper right direction around the boundary line of the Ego vehicle 10. That is, it may be determined that the vehicle 1 is a vehicle located in front of the Ego vehicle 10.

In this case, the alarm processing unit 130 determines that the event according to the current event message, that is, the sudden braking event, has occurred in a position ahead of the Ego vehicle 10 itself, that is, in the preceding vehicle 1, and determines that the condition 1 is satisfied. .

Taking a blue vehicle as an example, when the latitude/longitude value of the blue vehicle is (x",y"), when f(x"+δx, y"+δy) is calculated, a value less than 0 is displayed. That is, f(x"+δx, y"+δy)<0. Qualitatively, it can be determined that the blue vehicle is in the lower left direction around the boundary line of the Ego vehicle 10. That is, it may be determined that the blue vehicle is a vehicle located behind the Ego vehicle 10.

In addition, the alarm processing unit 130 uses the heading information of the Ego vehicle 10 and the heading information of the vehicle 1, and the event according to the current event message, that is, the sudden braking event, is the Ego vehicle 10 It is determined whether it occurred in the vehicle in the same driving direction as (Condition 2).

Specifically, the heading information is expressed in units of 0.0125˚ by dividing 360˚ by 28800. In the PC5 interface, the value of the heading field in the message has an integer value. For example, if the heading field value in the message has an integer value of 7, it can be seen that the vehicle proceeds in the direction rotated eastward by 7*0.0125° from the center of the normal north direction.

In the end, if the difference between the heading information (n) of the Ego vehicle 10 and the heading information (n') of the counterpart vehicle, that is, the vehicle 1 is greater than a predetermined threshold value (μ), the opposite lane is It is judged that there is a vehicle. That is, if (n-n')>μ, it can be determined that the driving direction is the opposite.

Qualitative meaning is that if the heading angle difference is more than a certain level (eg μ), it means the opposite driving direction, and if it is less than a certain level (eg μ), it means the same driving direction.

Accordingly, if the difference between the heading angle of the Ego vehicle 10 and the heading angle of the vehicle 1 is less than a certain level (eg, μ), the alarm processing unit 130 is the same driving direction. It will be determined that the braking event has occurred in the vehicle in the same driving direction as the Ego vehicle 10, and it will be determined that the condition 2 is satisfied.

If both conditions 1 and 2 are satisfied as described above, the alarm processing unit 130 determines that the event message received through the Pc5 interface is a meaningful event message that may generate an event alarm, and the event according to the current event message It can trigger an alarm.

For example, the alarm processing unit 130 is an event vehicle that has generated an event according to this event message, that is, a sudden braking event, so that the vehicle 1 that has installed another App, which is the subject that sent the event message, is calculated through GPS. The event vehicle (e.g. 1) and the Ego vehicle (10) through calculation (e.g., Haversine formula) using the latitude/longitude value of the installed vehicle (10, Ego vehicle) and the latitude/longitude value of vehicle (1). The distance (d) of can be calculated.

In addition, the alarm processing unit 130 generates and warns an event alarm reflecting (applying) the distance d between the event vehicle 1 and the Ego vehicle 10 calculated previously based on the information in the current event message. By printing out the phrase, it gives attention to the driver.

If the other App-installed vehicle preceding another App-installed vehicle (1) has an event vehicle, and the other App-installed vehicle (1) is a relay vehicle that relays event messages generated/sent by another App-installed vehicle preceding the other App-installed vehicle (1). May be.

In this case, the alarm processing unit 130, within the current event message received from the vehicle 1, the event vehicle (e.g., the vehicle preceding the vehicle 1) and the distance between the vehicles 1 and the location of the vehicle 1 You can check the information (latitude/longitude).

Accordingly, the alarm processing unit 130, through a calculation (eg, Haversine formula) using the latitude/longitude value of the Ego vehicle 10 and the latitude/longitude value of the confirmed vehicle 1, the event vehicle (eg, vehicle 1 ) Of the preceding vehicle) and the distance (d) with the Ego vehicle 10 can be calculated.

In addition, the alarm processing unit 130 reflects (applies) the event vehicle (for example, the vehicle preceding the vehicle 1) and the distance (d) between the Ego vehicle 10 and the previously calculated event vehicle based on the information in the current event message. ) One event alarm is generated and a warning message is output to give attention to the driver.

In the existing alarm service, a terminal (e.g., a smartphone) installed with an app (navigation) that supports a communication function (channel) with the V2X server 200 is required in the event vehicle in which sudden braking has occurred, and a warning message is outputted. Since the vehicle also requires a terminal (e.g. smartphone) with the same app (navigation) installed, the alarm service is a service that is subordinate to a specific app-based event function, and cannot be provided to vehicles that do not use the same app (navigation). There were restrictions.

However, as described above, according to the event relay 100 of the present invention, an event message received through direct communication between vehicles from a vehicle without a communication channel with a V2X server is relayed to surrounding vehicles through direct communication between vehicles. And, if necessary, it relays to the V2X server so that it can be relayed to other vehicles equipped with the event relay device 100 of the present invention through the V2X server, and the event message received through indirect communication from the V2X server is transmitted between vehicles. It can be relayed to nearby vehicles through direct communication.

In this case, in the present invention, the app (navigation)-based event function is freed from the dependency of the app (navigation)-based event function having a communication channel with the server, and a vehicle that does not use the same app (navigation) By relaying even vehicles that do not have a communication channel with the V2X server, the number of nearby vehicles that can receive the event function based on app (navigation) can be remarkably expanded.

For this reason, in the present invention, by enabling event function relay not dependent on a specific app, an effect that can be stably applied to advanced V2X technology can be expected.

Hereinafter, a method of operating an event relay device according to an embodiment of the present invention will be described with reference to FIGS. 5 and 6.

First, with reference to FIG. 5, the operation method of the event relay device according to the present invention has been described with a focus on the viewpoint of event message relay.

For convenience of explanation, as a subject performing the method of operating the event relay device of the present invention, an App installation vehicle 10 in which the event relay device 100 of the present invention is installed will be described with reference to FIG. 3.

According to the operation method of the event relay device of the present invention, the event relay device 100 performs a series of processing for generating an event alarm according to the event message when an event message related to an event vehicle is received (S10). On the other hand (S20), it is possible to determine a relay target to relay the event according to the current event message based on the subject that transmitted the event message.

Step S20 of performing a series of processing for generating an event alarm according to the event message will be described in detail with reference to FIG. 6 to be described later.

When the event message relay processing is described in detail, according to the operation method of the event relay device of the present invention, the event relay device 100 is a subject that transmits the event message related to the sudden braking event received this time. It is determined whether it is a relay vehicle that relays the transmitted event message or a V2X server (S30).

When receiving the event message related to this sudden braking event through the Pc5 interface of direct vehicle-to-vehicle communication, the event relay 100 determines that the transmitting entity is an event vehicle or a relay vehicle (S30 vehicle), and a V2X server ( 200) and surrounding vehicles may be determined as a relay target (S40).

In addition, according to the operation method of the event relay device of the present invention, the event relay device 100 supports direct communication between vehicles when a server that provides a V2X service to the relay target determined as described above, that is, a V2X server 200 is included. Based on the Pc5 interface, only when it is determined that there is no vehicle that has transmitted an event message for this event to the V2X server 200 among surrounding vehicles, the V2X server 200 can be maintained as a relay target (S50).

According to the operation method of the event relay device of the present invention, the event relay device 100 transmits an event message for the current event through a communication interface with the relay target determined and maintained in steps S40 and S50, and the relay target, that is, V2X. It relays so that a message about this event can be received from a nearby vehicle (in other words, an App-installed vehicle) interlocking with the server 200 or a nearby vehicle (in other words, another App-installed vehicle) to be relayed (S60).

Specifically, when the determined relay target includes the V2X server 200, the event relay device 100 may transmit an event message to the V2X server 200 through a Uu interface (S60). This may be the same as or correspond to the existing event message reporting method.

In this case, the V2X server 200, based on the event message reported as in the past, if the subject reporting the event message is the event vehicle itself, based on the location information (latitude/longitude) of the vehicle identified in the message, Or, if the subject reporting the event message is a relay vehicle, based on the distance between the event vehicle and the vehicle itself (Ego) identified in the message, and the vehicle's location information (latitude/longitude), the maximum rear of the event vehicle is within 1.5 km. The following App installation vehicle (20,...) is specified, and an event message for this sudden braking event is transmitted to the specific following App installation vehicle (20,...) (S90).

In addition, when the determined relay target includes a nearby vehicle, that is, another App-installed vehicle, the event relay device 100 may transmit an event message to the surrounding vehicle through the Pc5 interface in a broadcasting method (S60).

In particular, the event relay device 100 provides the distance between the event vehicle that generated this event and the specific vehicle 10 of the event relay device 100 together when transmitting an event message through the PC5 interface, and the event relay device ( When an event alarm occurs in accordance with this event message from a nearby vehicle that receives the event message sent by the vehicle 10 by 100), that is, another App-installed vehicle, the event vehicle and the surrounding vehicle themselves using the distance between the event vehicle and the vehicle 10 Allows the calculated distance between to be applied.

Accordingly, each of the surrounding vehicles, that is, other App-installed vehicles, which received the event message transmitted in step S60 by the event relay device 100 installed in the vehicle 10, has the latitude/longitude value of the vehicle itself (Ego) and the confirmed vehicle 10 ), it is possible to calculate the distance (d) between the event vehicle and the vehicle itself (Ego) through calculation using the latitude/longitude value (eg, Haversine formula).

In addition, each of the other App-installed vehicles satisfies Condition 1 that occurs at a position ahead of the vehicle itself (Ego) that the event triggers according to this event message, and Condition 2 that occurs in the vehicle in the same driving direction as the vehicle itself (Ego). If it is determined whether the conditions 1 and 2 are satisfied, an event alarm reflecting (applying) the calculated distance d between the event vehicle and the vehicle itself (Ego) may be generated (S90).

On the other hand, the event relay device 100, when receiving the event message related to this sudden braking event through the Uu interface of the base station-based indirect communication, determines that the transmitting entity is the V2X server 200 (S30 server), and The vehicle may be determined as a relay target (S70).

In addition, since the determined relay target includes surrounding vehicles, that is, other App-installed vehicles, the event relay device 100 may transmit an event message to the surrounding vehicles through the Pc5 interface in a broadcasting method (S80).

At this time, the event relay device 100 also provides the distance between the event vehicle that generated this event and the specific vehicle 10 of the event relay device 100 when transmitting the event message through the Pc5 interface, so that the event relay device ( When an event alarm occurs in accordance with this event message from a nearby vehicle that receives the event message sent by the vehicle 10 by 100), that is, another App-installed vehicle, the event vehicle and the surrounding vehicle themselves using the distance between the event vehicle and the vehicle 10 Allows the calculated distance between to be applied.

Next, with reference to FIG. 6, a method of operating the event relay device according to the present invention will be described, focusing on the viewpoint of event alarm generation.

For convenience of explanation, as a subject performing the method of operating the event relay device of the present invention, an App installation vehicle 10 in which the event relay device 100 of the present invention is installed will be described with reference to FIG. 3.

According to the operating method of the event relay device of the present invention, the event relay device 100 performs a series of processing for generating an event alarm according to the event message when an event message related to a sudden braking event for an event vehicle is received (S10).

Specifically, according to the operation method of the event relay device of the present invention, the event relay device 100, the subject that transmitted the event message related to the sudden braking event received this time, sends the event vehicle or the event message transmitted by the event vehicle. It is determined whether it is a relay vehicle to be relayed or a V2X server (S11).

When receiving the event message related to this class braking event through the Uu interface of the base station-based indirect communication, the event relay 100 determines that the transmitting entity is the V2X server 200 (S11 server), and the V2X server ( 20) is specified and received as a target vehicle (for example, within the maximum rear 1.5 km), and since the information in the event message is processed by the server, an event alarm according to the event message can be generated as it is (S16).

On the other hand, when the event relay device 100 receives the event message related to this sudden braking event through the Pc5 interface of direct vehicle-to-vehicle communication, it determines that the transmitting entity is an event vehicle or a relay vehicle (S11 vehicle), and this time Based on the information in the event message, it is determined whether the event according to the current event message, that is, the sudden braking event, occurred in a position (the preceding vehicle) ahead of the vehicle 10 itself (condition 1) (S12).

Specifically, as mentioned above, in the event message, the location information (latitude/longitude) of the vehicle itself (Ego) sending the event message, heading information related to the driving direction, and communication with the V2X server It includes identification information indicating whether it is possible (for example, whether or not an app is installed in which the event relay device 100 of the present invention is implemented), and furthermore, the distance between the event vehicle and the vehicle itself (Ego), and the corresponding event to the V2X server It may be configured to include whether or not a message is transmitted and reported (hereinafter, information on whether to report).

Accordingly, when the event relay device 100 receives the event message through the PC5 interface, the vehicle that transmitted the message from the received message, that is, the latitude/longitude value of the vehicle (eg, 1), and the heading of the vehicle 1 (heading) information can be found.

Accordingly, the event relay device 100 uses the latitude/longitude value of the vehicle (10, hereinafter Ego vehicle) on which it is installed calculated through GPS and the latitude/longitude value of the vehicle 1, in the current event message. It is determined whether a corresponding event, that is, a sudden braking event, has occurred in a position (preceding vehicle) ahead of the Ego vehicle 10 itself (condition 1).

Specifically, as shown in FIG. 4, the latitude/longitude values of the Ego vehicle 10 are mapped to the coordinate system (0, 0) to change, and in this case, original_latitude=δx and original_longitude=δy. In other words, it is the amount of change in the latitude and longitude coordinates of the Ego vehicle.

Then, δx and δy are added to each of the latitude/longitude values of the vehicle 1 indicated in green, and mapped to a corresponding position in the coordinate system as shown in FIG. 4.

If there is a message received through the Pc5 interface from a vehicle (blue) following the Ego vehicle 10, δx and δy are added to each of the latitude/longitude values of the vehicle (blue), as shown in FIG. Map it to that location.

The event relay device 100 maps and changes the latitude/longitude value of the Ego vehicle 10 to the coordinate system (0, 0), and then changes the value of the Ego vehicle 10 based on the driving direction of the Ego vehicle 10, and the red dotted line ( The equation (f) of a straight line expressed as a boundary line) can be obtained by Equation 1.

When the latitude/longitude value of the vehicle 1 indicated in green is (x',y'), when f(x'+δx, y'+δy) is calculated, a value greater than 0 is displayed. That is, f(x'+δx, y'+δy)>0. Qualitatively, it can be determined that the vehicle 1 is in the upper right direction around the boundary line of the Ego vehicle 10. That is, it may be determined that the vehicle 1 is a vehicle located in front of the Ego vehicle 10.

In this case, the event relay device 100 determines that the event according to this event message, that is, the sudden braking event, has occurred in the position ahead of the Ego vehicle 10 itself, that is, in the preceding vehicle 1, and determines that the condition 1 is satisfied. Will (S12 Yes).

In addition, the event relay device 100 uses the heading information of the Ego vehicle 10 and the heading information of the vehicle 1, and the event according to the event message, that is, the sudden braking event, is the Ego vehicle ( It is determined whether it has occurred in the vehicle in the same driving direction as 10) (condition 2) (S13).

Specifically, the heading information is expressed in units of 0.0125˚ by dividing 360˚ by 28800. In the PC5 interface, the value of the heading field in the message has an integer value. For example, if the heading field value in the message has an integer value of 7, it can be seen that the vehicle proceeds in the direction rotated eastward by 7*0.0125° from the center of the normal north direction.

In the end, if the difference between the heading information (n) of the Ego vehicle 10 and the heading information (n') of the counterpart vehicle, that is, the vehicle 1 is greater than a predetermined threshold value (μ), the opposite lane is It is judged that there is a vehicle. That is, if (n-n')>μ, it can be determined that the driving direction is the opposite.

Accordingly, if the difference between the heading angle of the Ego vehicle 10 and the heading angle of the vehicle 1 is less than a certain level (eg, μ), the event relay device 100 is the same driving direction, and thus the event according to the event message It is determined that the sudden braking event has occurred in the vehicle in the same driving direction as the Ego vehicle 10, and it will be determined that the condition 2 is satisfied (S13 Yes).

As described above, the event relay device 100 does not generate an event alarm according to the current event message if either of the conditions 1 and the condition is not satisfied (S15).

If both conditions 1 and 2 are satisfied as described above, the event relay device 100 determines that the event message received through the Pc5 interface is a meaningful event message capable of generating an event alarm, and according to the current event message. An event alarm can be generated (S14).

For example, the event relay 100 is an event vehicle that has generated an event according to this event message, that is, a sudden braking event, so that the vehicle 1 installed with another App, which is the subject that sent the event message, is calculated through GPS. Event vehicle (e.g. 1) and Ego vehicle (10) through calculation (e.g., Haversine formula) using the latitude/longitude value of the installed vehicle (10, Ego vehicle) and the latitude/longitude value of vehicle (1) The distance (d) with can be calculated.

In addition, the event relay device 100 generates an event alarm reflecting (applying) the distance d between the event vehicle 1 and the Ego vehicle 10 calculated previously based on the information in the event message, and A warning message is output to alert the driver.

If the other App-installed vehicle preceding another App-installed vehicle (1) has an event vehicle, and the other App-installed vehicle (1) is a relay vehicle that relays event messages generated/sent by another App-installed vehicle preceding the other App-installed vehicle (1). May be.

If this is the case, the event relay device 100, within the current event message received from the vehicle 1, the event vehicle (for example, the vehicle preceding the vehicle 1) and the distance between the vehicle 1 and the vehicle 1 You can check the location information (latitude/longitude).

Accordingly, the event relay device 100 uses the latitude/longitude value of the Ego vehicle 10 and the latitude/longitude value of the confirmed vehicle 1 to calculate (for example, Haversine formula), the event vehicle (for example, the vehicle ( 1) of the preceding vehicle) and the distance d between the Ego vehicle 10 can be calculated.

In addition, the event relay device 100 reflects the distance d between the event vehicle (for example, the preceding vehicle of the vehicle 1) and the Ego vehicle 10 calculated previously based on the information in the event message ( Applied) An event alarm is generated and a warning message is output to give attention to the driver (S14).

As described above, according to the present invention, by relaying the event function based on the navigation app to vehicles that do not use the same navigation app, and even vehicles that do not have a communication channel with the V2X server, escaping the dependency of the event function based on the navigation app, It draws an effect that can dramatically expand the number of nearby vehicles that can receive the event function based on the navigation app.

For this reason, in the present invention, by enabling event function relay not dependent on a specific app, an effect that can be stably applied to advanced V2X technology can be expected.

The method of operating an event relay device according to an embodiment of the present invention may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. -A hardware device specially configured to store and execute program instructions such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those produced by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operation of the present invention, and vice versa.

Although the present invention has been described in detail with reference to preferred embodiments so far, the present invention is not limited to the above-described embodiments, and the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the following claims. Anyone of ordinary skill in the art will say that the technical idea of the present invention extends to the range in which various modifications or modifications are possible.

According to the event relay device and the operation method of the event relay device of the present invention, in that the number of surrounding vehicles that can receive the event function based on a navigation app can be significantly expanded, as it exceeds the limitations of the existing technology, It is an invention that has industrial applicability because it is not only the use of the related technology, but also the possibility of commercialization or business of the applied device is sufficient as well as the degree to be practically obvious.

100: event relay device
110: relay target determination unit 120: event relay unit
130: alarm processing unit

Claims (17)

A relay target determination unit for determining a relay target to relay an event according to the event message based on a subject transmitting the event message when receiving an event message for a vehicle; And
An event relay unit that transmits an event message for the event through a communication interface with the determined relay target, and relays the message about the event from a nearby vehicle interlocking with the relay target or a nearby vehicle that is the relay target. Event relay device comprising a. The method of claim 1,
The relay target determination unit,
When the subject transmitting the event message is the event vehicle that generated the event or a relay vehicle that relays the event message transmitted by the event vehicle,
An event relay device, characterized in that determining a server providing a Vehicle to Everything (V2X) service and a nearby vehicle as the relay target. The method of claim 1,
The relay target determination unit,
If the determined relay target includes a server providing V2X service,
An event relay device, characterized in that, based on a first communication interface supporting direct vehicle-to-vehicle communication, when it is determined that no vehicle has transmitted an event message for the event to the server among surrounding vehicles, the server is maintained as the relay target. . The method of claim 1,
The relay target determination unit,
If the subject that sent the event message is a server providing V2X service,
Event relay device, characterized in that determining the surrounding vehicle as the relay target. The method of claim 1,
The event relay unit,
When a surrounding vehicle is included in the determined relay target, an event message is transmitted to the surrounding vehicle through a first communication interface supporting direct communication between vehicles,
When the determined relay target includes a server providing a vehicle to everything (V2X) service, an event message is transmitted to the server through a second communication interface supporting base station-based indirect communication. Device. The method of claim 5,
The event relay unit,
When an event message is transmitted through the first communication interface, a distance between the event vehicle that generated the event and a specific vehicle of the event relay device is provided together, so that the distance when an event alarm according to the event message occurs in the surrounding vehicle is provided. The event relay device, characterized in that the calculated distance between the event vehicle and the surrounding vehicle can be applied by using. The method of claim 1,
And an alarm processing unit for differently processing an event alarm method according to the event message based on a subject transmitting the event message. The method of claim 7,
The alarm processing unit,
When the subject transmitting the event message is a server that provides a V2X service, an event relay device according to the event message is generated. The method of claim 7,
The alarm processing unit,
When the subject transmitting the event message is the event vehicle that generated the event or a relay vehicle that relays the event message transmitted by the event vehicle,
Based on the information in the event message, whether the event according to the event message satisfies the condition 1 occurring at a position ahead of the specific vehicle of the event relay and the condition 2 occurring in the vehicle in the same driving direction as the specific vehicle. And generating an event alarm according to the event message upon satisfaction. A relay target determination step of determining a relay target to relay the event according to the event message based on the subject that transmitted the event message upon receiving the event message for the vehicle; And
An event relay step of transmitting an event message for the event through a communication interface with the determined relay target, and relaying the message about the event from a nearby vehicle interlocking with the relay target or a nearby vehicle that is the relay target. The method of operating an event relay device comprising a. The method of claim 10,
The relay target determination step,
In the case where the subject sending the event message is the event vehicle that generated the event or a relay vehicle that relays the event message transmitted by the event vehicle, a server providing a V2X (Vehicle to Everything) service and a nearby vehicle are the relay target. And decide
When the subject transmitting the event message is a server providing a V2X service, a nearby vehicle is determined as the relay target. The method of claim 10,
The relay target determination step,
If the determined relay target includes a server providing V2X service,
An event relay device, characterized in that, based on a first communication interface supporting direct vehicle-to-vehicle communication, when it is determined that no vehicle has transmitted an event message for the event to the server among surrounding vehicles, the server is maintained as the relay target. Method of operation. The method of claim 10,
The event relay step,
When a surrounding vehicle is included in the determined relay target, an event message is transmitted to the surrounding vehicle through a first communication interface supporting direct communication between vehicles,
When the determined relay target includes a server providing a vehicle to everything (V2X) service, an event message is transmitted to the server through a second communication interface supporting base station-based indirect communication. How the device works. The method of claim 13,
The event relay step,
When an event message is transmitted through the first communication interface, a distance between the event vehicle that generated the event and a specific vehicle of the event relay device is provided together, so that the distance when an event alarm according to the event message occurs in the surrounding vehicle is provided. The method of operating an event relay device, characterized in that the calculated distance between the event vehicle and the surrounding vehicle can be applied by using. The method of claim 10,
And an alarm processing unit that processes an event alarm method according to the event message differently based on the subject that transmitted the event message. The method of claim 15,
The alarm processing step,
When the subject transmitting the event message is the event vehicle that generated the event or a relay vehicle that relays the event message transmitted by the event vehicle,
Based on the information in the event message, whether the event according to the event message satisfies the condition 1 occurring at a position ahead of the specific vehicle of the event relay and the condition 2 occurring in the vehicle in the same driving direction as the specific vehicle. And, upon satisfaction, generating an event alarm according to the event message. A computer program stored on a medium for executing the method of any one of claims 10 to 16.

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